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Fix up types and comments that refer to Deferreds. (#7945)

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Patrick Cloke 2020-07-24 10:53:25 -04:00 committed by GitHub
parent 53f7b49f5b
commit e739b20588
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9 changed files with 174 additions and 157 deletions
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1
changelog.d/7945.misc Normal file
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@ -0,0 +1 @@
Update comments that refer to Deferreds for async functions.

2
synapse/handlers/admin.py
View File

@ -72,7 +72,7 @@ class AdminHandler(BaseHandler):
writer (ExfiltrationWriter)
Returns:
defer.Deferred: Resolves when all data for a user has been written.
Resolves when all data for a user has been written.
The returned value is that returned by `writer.finished()`.
"""
# Get all rooms the user is in or has been in

24
synapse/handlers/e2e_keys.py
View File

@ -16,10 +16,11 @@
# limitations under the License.
import logging
from typing import Dict, List, Optional, Tuple
import attr
from canonicaljson import encode_canonical_json, json
from signedjson.key import decode_verify_key_bytes
from signedjson.key import VerifyKey, decode_verify_key_bytes
from signedjson.sign import SignatureVerifyException, verify_signed_json
from unpaddedbase64 import decode_base64
@ -265,7 +266,9 @@ class E2eKeysHandler(object):
return ret
async def get_cross_signing_keys_from_cache(self, query, from_user_id):
async def get_cross_signing_keys_from_cache(
self, query, from_user_id
) -> Dict[str, Dict[str, dict]]:
"""Get cross-signing keys for users from the database
Args:
@ -277,8 +280,7 @@ class E2eKeysHandler(object):
can see.
Returns:
defer.Deferred[dict[str, dict[str, dict]]]: map from
(master_keys|self_signing_keys|user_signing_keys) -> user_id -> key
A map from (master_keys|self_signing_keys|user_signing_keys) -> user_id -> key
"""
master_keys = {}
self_signing_keys = {}
@ -312,16 +314,17 @@ class E2eKeysHandler(object):
}
@trace
async def query_local_devices(self, query):
async def query_local_devices(
self, query: Dict[str, Optional[List[str]]]
) -> Dict[str, Dict[str, dict]]:
"""Get E2E device keys for local users
Args:
query (dict[string, list[string]|None): map from user_id to a list
query: map from user_id to a list
of devices to query (None for all devices)
Returns:
defer.Deferred: (resolves to dict[string, dict[string, dict]]):
map from user_id -> device_id -> device details
A map from user_id -> device_id -> device details
"""
set_tag("local_query", query)
local_query = []
@ -1004,7 +1007,7 @@ class E2eKeysHandler(object):
async def _retrieve_cross_signing_keys_for_remote_user(
self, user: UserID, desired_key_type: str,
):
) -> Tuple[Optional[dict], Optional[str], Optional[VerifyKey]]:
"""Queries cross-signing keys for a remote user and saves them to the database
Only the key specified by `key_type` will be returned, while all retrieved keys
@ -1015,8 +1018,7 @@ class E2eKeysHandler(object):
desired_key_type: The type of key to receive. One of "master", "self_signing"
Returns:
Deferred[Tuple[Optional[Dict], Optional[str], Optional[VerifyKey]]]: A tuple
of the retrieved key content, the key's ID and the matching VerifyKey.
A tuple of the retrieved key content, the key's ID and the matching VerifyKey.
If the key cannot be retrieved, all values in the tuple will instead be None.
"""
try:

8
synapse/handlers/federation.py
View File

@ -1394,7 +1394,7 @@ class FederationHandler(BaseHandler):
# it's just a best-effort thing at this point. We do want to do
# them roughly in order, though, otherwise we'll end up making
# lots of requests for missing prev_events which we do actually
# have. Hence we fire off the deferred, but don't wait for it.
# have. Hence we fire off the background task, but don't wait for it.
run_in_background(self._handle_queued_pdus, room_queue)
@ -2994,7 +2994,9 @@ class FederationHandler(BaseHandler):
else:
user_joined_room(self.distributor, user, room_id)
async def get_room_complexity(self, remote_room_hosts, room_id):
async def get_room_complexity(
self, remote_room_hosts: List[str], room_id: str
) -> Optional[dict]:
"""
Fetch the complexity of a remote room over federation.
@ -3003,7 +3005,7 @@ class FederationHandler(BaseHandler):
room_id (str): The room ID to ask about.
Returns:
Deferred[dict] or Deferred[None]: Dict contains the complexity
Dict contains the complexity
metric versions, while None means we could not fetch the complexity.
"""

271
synapse/handlers/identity.py
View File

@ -19,6 +19,7 @@
import logging
import urllib.parse
from typing import Awaitable, Callable, Dict, List, Optional, Tuple
from canonicaljson import json
from signedjson.key import decode_verify_key_bytes
@ -36,6 +37,7 @@ from synapse.api.errors import (
)
from synapse.config.emailconfig import ThreepidBehaviour
from synapse.http.client import SimpleHttpClient
from synapse.types import JsonDict, Requester
from synapse.util.hash import sha256_and_url_safe_base64
from synapse.util.stringutils import assert_valid_client_secret, random_string
@ -59,23 +61,23 @@ class IdentityHandler(BaseHandler):
self.federation_http_client = hs.get_http_client()
self.hs = hs
async def threepid_from_creds(self, id_server, creds):
async def threepid_from_creds(
self, id_server: str, creds: Dict[str, str]
) -> Optional[JsonDict]:
"""
Retrieve and validate a threepid identifier from a "credentials" dictionary against a
given identity server
Args:
id_server (str): The identity server to validate 3PIDs against. Must be a
id_server: The identity server to validate 3PIDs against. Must be a
complete URL including the protocol (http(s)://)
creds (dict[str, str]): Dictionary containing the following keys:
creds: Dictionary containing the following keys:
* client_secret|clientSecret: A unique secret str provided by the client
* sid: The ID of the validation session
Returns:
Deferred[dict[str,str|int]|None]: A dictionary consisting of response params to
the /getValidated3pid endpoint of the Identity Service API, or None if the
threepid was not found
A dictionary consisting of response params to the /getValidated3pid
endpoint of the Identity Service API, or None if the threepid was not found
"""
client_secret = creds.get("client_secret") or creds.get("clientSecret")
if not client_secret:
@ -119,26 +121,27 @@ class IdentityHandler(BaseHandler):
return None
async def bind_threepid(
self, client_secret, sid, mxid, id_server, id_access_token=None, use_v2=True
):
self,
client_secret: str,
sid: str,
mxid: str,
id_server: str,
id_access_token: Optional[str] = None,
use_v2: bool = True,
) -> JsonDict:
"""Bind a 3PID to an identity server
Args:
client_secret (str): A unique secret provided by the client
sid (str): The ID of the validation session
mxid (str): The MXID to bind the 3PID to
id_server (str): The domain of the identity server to query
id_access_token (str): The access token to authenticate to the identity
client_secret: A unique secret provided by the client
sid: The ID of the validation session
mxid: The MXID to bind the 3PID to
id_server: The domain of the identity server to query
id_access_token: The access token to authenticate to the identity
server with, if necessary. Required if use_v2 is true
use_v2 (bool): Whether to use v2 Identity Service API endpoints. Defaults to True
use_v2: Whether to use v2 Identity Service API endpoints. Defaults to True
Returns:
Deferred[dict]: The response from the identity server
The response from the identity server
"""
logger.debug("Proxying threepid bind request for %s to %s", mxid, id_server)
@ -151,7 +154,7 @@ class IdentityHandler(BaseHandler):
bind_data = {"sid": sid, "client_secret": client_secret, "mxid": mxid}
if use_v2:
bind_url = "https://%s/_matrix/identity/v2/3pid/bind" % (id_server,)
headers["Authorization"] = create_id_access_token_header(id_access_token)
headers["Authorization"] = create_id_access_token_header(id_access_token) # type: ignore
else:
bind_url = "https://%s/_matrix/identity/api/v1/3pid/bind" % (id_server,)
@ -187,20 +190,20 @@ class IdentityHandler(BaseHandler):
)
return res
async def try_unbind_threepid(self, mxid, threepid):
async def try_unbind_threepid(self, mxid: str, threepid: dict) -> bool:
"""Attempt to remove a 3PID from an identity server, or if one is not provided, all
identity servers we're aware the binding is present on
Args:
mxid (str): Matrix user ID of binding to be removed
threepid (dict): Dict with medium & address of binding to be
mxid: Matrix user ID of binding to be removed
threepid: Dict with medium & address of binding to be
removed, and an optional id_server.
Raises:
SynapseError: If we failed to contact the identity server
Returns:
Deferred[bool]: True on success, otherwise False if the identity
True on success, otherwise False if the identity
server doesn't support unbinding (or no identity server found to
contact).
"""
@ -223,19 +226,21 @@ class IdentityHandler(BaseHandler):
return changed
async def try_unbind_threepid_with_id_server(self, mxid, threepid, id_server):
async def try_unbind_threepid_with_id_server(
self, mxid: str, threepid: dict, id_server: str
) -> bool:
"""Removes a binding from an identity server
Args:
mxid (str): Matrix user ID of binding to be removed
threepid (dict): Dict with medium & address of binding to be removed
id_server (str): Identity server to unbind from
mxid: Matrix user ID of binding to be removed
threepid: Dict with medium & address of binding to be removed
id_server: Identity server to unbind from
Raises:
SynapseError: If we failed to contact the identity server
Returns:
Deferred[bool]: True on success, otherwise False if the identity
True on success, otherwise False if the identity
server doesn't support unbinding
"""
url = "https://%s/_matrix/identity/api/v1/3pid/unbind" % (id_server,)
@ -287,23 +292,23 @@ class IdentityHandler(BaseHandler):
async def send_threepid_validation(
self,
email_address,
client_secret,
send_attempt,
send_email_func,
next_link=None,
):
email_address: str,
client_secret: str,
send_attempt: int,
send_email_func: Callable[[str, str, str, str], Awaitable],
next_link: Optional[str] = None,
) -> str:
"""Send a threepid validation email for password reset or
registration purposes
Args:
email_address (str): The user's email address
client_secret (str): The provided client secret
send_attempt (int): Which send attempt this is
send_email_func (func): A function that takes an email address, token,
client_secret and session_id, sends an email
and returns a Deferred.
next_link (str|None): The URL to redirect the user to after validation
email_address: The user's email address
client_secret: The provided client secret
send_attempt: Which send attempt this is
send_email_func: A function that takes an email address, token,
client_secret and session_id, sends an email
and returns an Awaitable.
next_link: The URL to redirect the user to after validation
Returns:
The new session_id upon success
@ -372,17 +377,22 @@ class IdentityHandler(BaseHandler):
return session_id
async def requestEmailToken(
self, id_server, email, client_secret, send_attempt, next_link=None
):
self,
id_server: str,
email: str,
client_secret: str,
send_attempt: int,
next_link: Optional[str] = None,
) -> JsonDict:
"""
Request an external server send an email on our behalf for the purposes of threepid
validation.
Args:
id_server (str): The identity server to proxy to
email (str): The email to send the message to
client_secret (str): The unique client_secret sends by the user
send_attempt (int): Which attempt this is
id_server: The identity server to proxy to
email: The email to send the message to
client_secret: The unique client_secret sends by the user
send_attempt: Which attempt this is
next_link: A link to redirect the user to once they submit the token
Returns:
@ -419,22 +429,22 @@ class IdentityHandler(BaseHandler):
async def requestMsisdnToken(
self,
id_server,
country,
phone_number,
client_secret,
send_attempt,
next_link=None,
):
id_server: str,
country: str,
phone_number: str,
client_secret: str,
send_attempt: int,
next_link: Optional[str] = None,
) -> JsonDict:
"""
Request an external server send an SMS message on our behalf for the purposes of
threepid validation.
Args:
id_server (str): The identity server to proxy to
country (str): The country code of the phone number
phone_number (str): The number to send the message to
client_secret (str): The unique client_secret sends by the user
send_attempt (int): Which attempt this is
id_server: The identity server to proxy to
country: The country code of the phone number
phone_number: The number to send the message to
client_secret: The unique client_secret sends by the user
send_attempt: Which attempt this is
next_link: A link to redirect the user to once they submit the token
Returns:
@ -480,17 +490,18 @@ class IdentityHandler(BaseHandler):
)
return data
async def validate_threepid_session(self, client_secret, sid):
async def validate_threepid_session(
self, client_secret: str, sid: str
) -> Optional[JsonDict]:
"""Validates a threepid session with only the client secret and session ID
Tries validating against any configured account_threepid_delegates as well as locally.
Args:
client_secret (str): A secret provided by the client
sid (str): The ID of the session
client_secret: A secret provided by the client
sid: The ID of the session
Returns:
Dict[str, str|int] if validation was successful, otherwise None
The json response if validation was successful, otherwise None
"""
# XXX: We shouldn't need to keep wrapping and unwrapping this value
threepid_creds = {"client_secret": client_secret, "sid": sid}
@ -523,23 +534,22 @@ class IdentityHandler(BaseHandler):
return validation_session
async def proxy_msisdn_submit_token(self, id_server, client_secret, sid, token):
async def proxy_msisdn_submit_token(
self, id_server: str, client_secret: str, sid: str, token: str
) -> JsonDict:
"""Proxy a POST submitToken request to an identity server for verification purposes
Args:
id_server (str): The identity server URL to contact
client_secret (str): Secret provided by the client
sid (str): The ID of the session
token (str): The verification token
id_server: The identity server URL to contact
client_secret: Secret provided by the client
sid: The ID of the session
token: The verification token
Raises:
SynapseError: If we failed to contact the identity server
Returns:
Deferred[dict]: The response dict from the identity server
The response dict from the identity server
"""
body = {"client_secret": client_secret, "sid": sid, "token": token}
@ -554,19 +564,25 @@ class IdentityHandler(BaseHandler):
logger.warning("Error contacting msisdn account_threepid_delegate: %s", e)
raise SynapseError(400, "Error contacting the identity server")
async def lookup_3pid(self, id_server, medium, address, id_access_token=None):
async def lookup_3pid(
self,
id_server: str,
medium: str,
address: str,
id_access_token: Optional[str] = None,
) -> Optional[str]:
"""Looks up a 3pid in the passed identity server.
Args:
id_server (str): The server name (including port, if required)
id_server: The server name (including port, if required)
of the identity server to use.
medium (str): The type of the third party identifier (e.g. "email").
address (str): The third party identifier (e.g. "foo@example.com").
id_access_token (str|None): The access token to authenticate to the identity
medium: The type of the third party identifier (e.g. "email").
address: The third party identifier (e.g. "foo@example.com").
id_access_token: The access token to authenticate to the identity
server with
Returns:
str|None: the matrix ID of the 3pid, or None if it is not recognized.
the matrix ID of the 3pid, or None if it is not recognized.
"""
if id_access_token is not None:
try:
@ -591,17 +607,19 @@ class IdentityHandler(BaseHandler):
return await self._lookup_3pid_v1(id_server, medium, address)
async def _lookup_3pid_v1(self, id_server, medium, address):
async def _lookup_3pid_v1(
self, id_server: str, medium: str, address: str
) -> Optional[str]:
"""Looks up a 3pid in the passed identity server using v1 lookup.
Args:
id_server (str): The server name (including port, if required)
id_server: The server name (including port, if required)
of the identity server to use.
medium (str): The type of the third party identifier (e.g. "email").
address (str): The third party identifier (e.g. "foo@example.com").
medium: The type of the third party identifier (e.g. "email").
address: The third party identifier (e.g. "foo@example.com").
Returns:
str: the matrix ID of the 3pid, or None if it is not recognized.
the matrix ID of the 3pid, or None if it is not recognized.
"""
try:
data = await self.blacklisting_http_client.get_json(
@ -621,18 +639,20 @@ class IdentityHandler(BaseHandler):
return None
async def _lookup_3pid_v2(self, id_server, id_access_token, medium, address):
async def _lookup_3pid_v2(
self, id_server: str, id_access_token: str, medium: str, address: str
) -> Optional[str]:
"""Looks up a 3pid in the passed identity server using v2 lookup.
Args:
id_server (str): The server name (including port, if required)
id_server: The server name (including port, if required)
of the identity server to use.
id_access_token (str): The access token to authenticate to the identity server with
medium (str): The type of the third party identifier (e.g. "email").
address (str): The third party identifier (e.g. "foo@example.com").
id_access_token: The access token to authenticate to the identity server with
medium: The type of the third party identifier (e.g. "email").
address: The third party identifier (e.g. "foo@example.com").
Returns:
Deferred[str|None]: the matrix ID of the 3pid, or None if it is not recognised.
the matrix ID of the 3pid, or None if it is not recognised.
"""
# Check what hashing details are supported by this identity server
try:
@ -757,49 +777,48 @@ class IdentityHandler(BaseHandler):
async def ask_id_server_for_third_party_invite(
self,
requester,
id_server,
medium,
address,
room_id,
inviter_user_id,
room_alias,
room_avatar_url,
room_join_rules,
room_name,
inviter_display_name,
inviter_avatar_url,
id_access_token=None,
):
requester: Requester,
id_server: str,
medium: str,
address: str,
room_id: str,
inviter_user_id: str,
room_alias: str,
room_avatar_url: str,
room_join_rules: str,
room_name: str,
inviter_display_name: str,
inviter_avatar_url: str,
id_access_token: Optional[str] = None,
) -> Tuple[str, List[Dict[str, str]], Dict[str, str], str]:
"""
Asks an identity server for a third party invite.
Args:
requester (Requester)
id_server (str): hostname + optional port for the identity server.
medium (str): The literal string "email".
address (str): The third party address being invited.
room_id (str): The ID of the room to which the user is invited.
inviter_user_id (str): The user ID of the inviter.
room_alias (str): An alias for the room, for cosmetic notifications.
room_avatar_url (str): The URL of the room's avatar, for cosmetic
requester
id_server: hostname + optional port for the identity server.
medium: The literal string "email".
address: The third party address being invited.
room_id: The ID of the room to which the user is invited.
inviter_user_id: The user ID of the inviter.
room_alias: An alias for the room, for cosmetic notifications.
room_avatar_url: The URL of the room's avatar, for cosmetic
notifications.
room_join_rules (str): The join rules of the email (e.g. "public").
room_name (str): The m.room.name of the room.
inviter_display_name (str): The current display name of the
room_join_rules: The join rules of the email (e.g. "public").
room_name: The m.room.name of the room.
inviter_display_name: The current display name of the
inviter.
inviter_avatar_url (str): The URL of the inviter's avatar.
inviter_avatar_url: The URL of the inviter's avatar.
id_access_token (str|None): The access token to authenticate to the identity
server with
Returns:
A deferred tuple containing:
token (str): The token which must be signed to prove authenticity.
A tuple containing:
token: The token which must be signed to prove authenticity.
public_keys ([{"public_key": str, "key_validity_url": str}]):
public_key is a base64-encoded ed25519 public key.
fallback_public_key: One element from public_keys.
display_name (str): A user-friendly name to represent the invited
user.
display_name: A user-friendly name to represent the invited user.
"""
invite_config = {
"medium": medium,
@ -896,15 +915,15 @@ class IdentityHandler(BaseHandler):
return token, public_keys, fallback_public_key, display_name
def create_id_access_token_header(id_access_token):
def create_id_access_token_header(id_access_token: str) -> List[str]:
"""Create an Authorization header for passing to SimpleHttpClient as the header value
of an HTTP request.
Args:
id_access_token (str): An identity server access token.
id_access_token: An identity server access token.
Returns:
list[str]: The ascii-encoded bearer token encased in a list.
The ascii-encoded bearer token encased in a list.
"""
# Prefix with Bearer
bearer_token = "Bearer %s" % id_access_token

13
synapse/handlers/room.py
View File

@ -119,7 +119,7 @@ class RoomCreationHandler(BaseHandler):
async def upgrade_room(
self, requester: Requester, old_room_id: str, new_version: RoomVersion
):
) -> str:
"""Replace a room with a new room with a different version
Args:
@ -128,7 +128,7 @@ class RoomCreationHandler(BaseHandler):
new_version: the new room version to use
Returns:
Deferred[unicode]: the new room id
the new room id
"""
await self.ratelimit(requester)
@ -239,7 +239,7 @@ class RoomCreationHandler(BaseHandler):
old_room_id: str,
new_room_id: str,
old_room_state: StateMap[str],
):
) -> None:
"""Send updated power levels in both rooms after an upgrade
Args:
@ -247,9 +247,6 @@ class RoomCreationHandler(BaseHandler):
old_room_id: the id of the room to be replaced
new_room_id: the id of the replacement room
old_room_state: the state map for the old room
Returns:
Deferred
"""
old_room_pl_event_id = old_room_state.get((EventTypes.PowerLevels, ""))
@ -322,7 +319,7 @@ class RoomCreationHandler(BaseHandler):
new_room_id: str,
new_room_version: RoomVersion,
tombstone_event_id: str,
):
) -> None:
"""Populate a new room based on an old room
Args:
@ -332,8 +329,6 @@ class RoomCreationHandler(BaseHandler):
created with _gemerate_room_id())
new_room_version: the new room version to use
tombstone_event_id: the ID of the tombstone event in the old room.
Returns:
Deferred
"""
user_id = requester.user.to_string()

7
synapse/handlers/search.py
View File

@ -15,6 +15,7 @@
import itertools
import logging
from typing import Iterable
from unpaddedbase64 import decode_base64, encode_base64
@ -37,7 +38,7 @@ class SearchHandler(BaseHandler):
self.state_store = self.storage.state
self.auth = hs.get_auth()
async def get_old_rooms_from_upgraded_room(self, room_id):
async def get_old_rooms_from_upgraded_room(self, room_id: str) -> Iterable[str]:
"""Retrieves room IDs of old rooms in the history of an upgraded room.
We do so by checking the m.room.create event of the room for a
@ -48,10 +49,10 @@ class SearchHandler(BaseHandler):
The full list of all found rooms in then returned.
Args:
room_id (str): id of the room to search through.
room_id: id of the room to search through.
Returns:
Deferred[iterable[str]]: predecessor room ids
Predecessor room ids
"""
historical_room_ids = []

4
synapse/handlers/sync.py
View File

@ -421,10 +421,6 @@ class SyncHandler(object):
potential_recents: Optional[List[EventBase]] = None,
newly_joined_room: bool = False,
) -> TimelineBatch:
"""
Returns:
a Deferred TimelineBatch
"""
with Measure(self.clock, "load_filtered_recents"):
timeline_limit = sync_config.filter_collection.timeline_limit()
block_all_timeline = (

1
tox.ini
View File

@ -185,6 +185,7 @@ commands = mypy \
synapse/handlers/cas_handler.py \
synapse/handlers/directory.py \
synapse/handlers/federation.py \
synapse/handlers/identity.py \
synapse/handlers/oidc_handler.py \
synapse/handlers/presence.py \
synapse/handlers/room_member.py \